Alisa Clausen on fri 28 may 04
Kaolin and Ball Clay
Glaze tested on white midrange stoneware fired in electric oxidation to =
1220c.
Source:
Credited to: Pete Pinnell
I recently realized that I have always mixed this glaze with Ball Clay =
instead of the Kaolin in the recipe. Just an initial mistake. I have =
always had good results with this glaze, with a nice patina green color. =
I tested it with Kaolin, and the results were much less than the recipe =
I mix with Ball Clay.
This was a lucky mistake for me, because the glaze acts much better for =
me with Ball Clay than Kaolin.=20
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)=20
100c p/h to 1220c (212f - 2228f)
5 min. soak
cool down max. to 800c
Hold 1 hour
Shut off kiln
Recipe:
Applied thick
60 Neph. Syenite
20 Strontium Carb.
10 Kaolin
9 Silica
1 Lithium Carb.
ADD
5.0 Titanium ox.
5.0 Copper Carb.
Note: All raw materials are measured up or down to the nearest whole =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.
Results:
A mat to semi mat overall brown glaze with a greenish cast , that is =
well covering. Color is essentially a dark olive brown.
Ball Clay version
A mat to semi mat overall, with olive brown breaking over a green =
ground.
Application is thick.
Regards from Alisa in Denmark
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